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Standard XII
Biology
Definition of Linkage and Linked Genes
Question

Strength of linkage is related inversely to distance between
  1. Chromosomes
  2. Chromatids
  3. Genes
  4. Telomeres

A
Chromatids
B
Genes
C
Telomeres
D
Chromosomes
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Solution
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A chromosome has two chromatids which are the copy of a newly replicated chromosome and are joined together by a single centromere. The linkage is the tendency of closely placed genes on a chromosome to stay together during inheritance. The linkage is indirectly proportional to the distance between genes, the less the distance between the genes, the less is the cross over frequency between them and the more is the linkage frequency between them. The correct answer is A.

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Similar Questions
Q1
Strength of linkage is related inversely to distance between
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Q2
Depending upon the distance between any two genes which is inversely proportional to the strength of linkage, cross overs will vary from
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Q3
How many of the following statements are wrong?
Statement I: Strength of linkage is directly proportional to the recombination of genes.
Statement II: Recombination of genes is inversely proportional to the strength of linkage.
Statement III: More the distance between the two genes on a
chromosome, less will be the strength of linkage.
Statement IV: More the distance between the two genes on a
chromosome, more the strength of linkage.
Statement V: Recombination frequency is inversely proportional to the distance between the genes present on a chromosome.
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Q4
How many of the following statements are correct?
Statement I: Recombination of genes is directly proportional to the strength of linkage.
Statement II: Recombination of genes is inversely proportional to the strength of linkage.
Statement III: More the distance between the two genes on a chromosome, less the strength of linkage.
Statement IV: More the distance between the two genes on a chromosome, more the strength of linkage.
Statement V: Recombination frequency is inversely proportional to the distance between the genes present on a chromosome.

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Q5

Strength of linkage is indirectly proportional to


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